Automatic printing-press.



PATENIED NOV. 26

H. BRETT. AUTOMATIC PRINTING PRESS.

APPLIUATION FILED JAN.4,,1907. RENEWED SEPT. 30,1907.

6 SHEETS-SHEET 1.

W 1 Z. w /w 5 No. 872,108 PATENTED NOV. 26, 1907. H. B. BRETT.

AUTOMATIC PRINTING PRESS.

APPLICATION FILED JAN.4,1907. RENEWED SEPT. 30, 1907.

6 SHEETS-SHBET 2.

PATENTED NOV. 26, 1907.

I 'H. E. BRETT. AUTOMATIC PRINTING PRESS.

APPLIUATION FILED JAN.4,1907. RENEWED SEPT. 30, 1907.

W; w W IZZZ-LZLL ----Q PATENTED NOV. 26

H. E. BRETT. AUTOMATIC PRINTING PRESS.

APPLICATION FILED JANA, 1907. RENEWED SBPT.30,1907.

6 SHEETS-SHEET 4 w J y l No. 872,108. PATENTBD NOV. 26, 1907. H. E. BRETT.

AUTOMATIC PRINTING PRESS.

APPLIOATION FILED JANA, 1907. RENEWED SEPT. 30,1907.

0 SHEETS-SHEET 5v W w WM PATENTED NOV. 26

H. E. BRETT.

AUTOMATIC PRINTING PRESS.

APPLICATION FILED JANA, 1907. RENEWED SEPT. 30, 1907.

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mounted thereon Unrra srarns ATENT orrron.

LOS ANGELES, CALIFORNIA, ASSIGNOR TO THE MILLS AUTOMATIC PRESS COMPANY, A CORPORATION.

AUTOMATIC PRIN TIN G-PRESS.

Specification of Letters Patent.

Patented Nov. 26, 1907.

Application filed January 4. 1907. Serial No. 350.833- Renewed September 30. 1907- Serial No. 395.288.

To all whom it may concern.-

Be it known that I, IIENRY E. BRETT, a citizen of the United States, residing at Los Angcles, in the county of .lios Angeles and State of California, have invented new and useful Improvements in Automatic Printing- Presses, of which the following is a specification.

My invention relates to a printing press in which the paper is automatically fed and hold while the same is being printed and the sheet will then be automatically delivered out of the machine; and the object thereof is to provide an efficient, rapid. acting machine for that purpose. I accomplish this object by the mechanism described herein and illus 'trated in the accompanying drawings, in

Figure 1 is a side elevation partly in sec tion of my improved printing press. Fig. 2.- is a plan of the same. Fig. 3 is a section of the upper portion of my machine on the line 3-3 of Fig. 2. Fig. 4 is a detail of a portion of the mechanism shown in Fig. 3. Fig. 5 is a section on the line 55 of Fig. 2. Fig. 6- is an enlarged detail of a portion of the mechanism shown in Fig. 5. Fig. 7'is a central section of the cylinder and a portion of the piston shown in Fig. 6. Fig. 8 is a section on the line 8-8 of Fig. 1. Figs. 9 to 13- are views relating to the vacuum mechanism. Figs. 14 to 19* are views relating to the paper feed mechanism. In one side of the frame 20 of the machine is mounted the driving shaft 21, on the outer end of which'is the power .pulley 22 which is driven by belt 23 or in any other suitable manner. On this shaft is a fly wheel 24 of usual construction. Shaft 21 has rigidly a pinion 25 which meshes with gear 26. Gear 26 is mounted on crank shaft 27 which is provided with crank 28. The arms of crank 28 project on both sides of shaft 27, as shown in Fig. 8, and the unconnected ends are provided with counter-balancing weights 29 and 30. A pitman rod 31 is pivotally connectedat one end to crank 28 and at the other end to arm 32, which arm is rigidly secured to the lower side of the type carrying frame 33, and as said crank is rotated said pitman causes a reciprocation of the type carrying frame on the inclined guide ways 34. As best shown in Fig. 5 the type frame has a depression or pocket 35, in which is carried a form box'36 which is vertically movable therein so that the type 36 (Fig. 17) which are locked in a form and placed in said box and locked therein may be raised when the frame is moved to the left to engage or contact with the paper to'be printed, which paper is held on cylinder 37 while it is being printed.

Movement of the form b0m.-'lhe form box rests upon and is supported by shafts 38 and 38 which are flattened as shown in Figs. 5 and 6. WVhen the type are not intended to contact with the cylinder on the movement of type carrying frame the form box rests upon the flattened portion of the shafts as shown in Figs. 5 and 6. These shafts are mounted in bearings secured to the bottom of the pocket. To these shafts are secured levers 39 and 39 which pass through slots in the bottom of the pocket and are pivotally united to a carrying bar 40 provided with a downwardly extending arm 41. In the lower end of arm 41 42 which will rideon an incline formed by a trap door 43 when the frame is moved to the left, if said trap door is let down as shown in Fig. 5. This trap door forms a art of the inclined side raising track 44 w ich is secured to a side bar forming a part of the frame. When wheel 42 travels up the incline formed by the trap door levers 39 and 39 are rocked,.whereby the round )ortions of the shafts are brought'beneath t e form box which raises it sufficiently to bring the ty e into engagement with the paper on the cylinder. This track is cut away at 45 so that when the roller 42 reaches that point it will drop through the track and thereby cause the rotation of shafts 3'8 and 38 to bring the flat portions thereof in contact with the form box, thereby permitting the same to drop to the position s own in Fig. 5, in which position the type will not contact with cylinder 37 when t e frame 1s moved in either direction. It will be understood that the length of track 44 from the pointat which the trap door is pivoted to the point where it is .cut away is sufficient to keep the type in contact with the paper on cylln er 37 while said cylinder makes a complete revolution. Spring 39 causes the quick return of the levers.

Exhaust mechanism.-Within cylinder 37 is an, air chamber 46 which is provided with a plurality of ports 47 WhlCh open through the top ofthe casing of the chamis a small wheel a bearing wheel 69 trolling valve chamber are channels her and when the valve is in the 2 -communication between said pi 59-is in communicatlon with t e open a r.

ber, which casing forms a portion of the cylinder, the same being cutaway. at this I point. A pipe 48 connects chamber 46 with shaft 49 upon which cylinder 37 is mounted.

5 This shaft from its connection with that of pipe 48 to the outer end is hollow as shown in 1g. 3 and passes through a bearing block 50 which is mounted and movable in a guideway 51 in the top of the frame. A similar block and guideway is provided at the other end of the shaft. The outer end of the shaft is closed by a plug 52. Near the outer end this shaft passes through the casing 53 of an air chamber 54, within which chamber the said shaft is provided with ports 55 which connect the interior of said shaft with said air chamber. Connecteflto said casingand in communication with said air chamber is a pipe 56 which has a cutoff valve or cook 57 thereon. Pipe 56 is connected by aflexible hose 58 with pipe 59, which last pipe is provided with a T-fitting 60. Pipe 59 isconnected to the casing 61 of the air controlling valve chamber 62, in which last chamber is the hollow valve 63, shown in detail in Fig. 9. The outer end of this valve chamber is closed by aerforated plate 64 against which one end 0 spring 65 bears. This spring is partly housed within valve 63 and exerts its power 30 toward forcing said valve out of chamber 62.

Valve 63 has a stem 66 which screws into the outer end thereof so that its length may be regulated and a lock nut 67 secures it in. its adjusted position.- This stem passes through 35 a bearing 68 which is secured or integral with an extension ofthe casing .ofthe valve chamber which is secured to the frame of themachine.

Key 68 prevents it from rotating in its bearing. In t e outer end of this stem is which provides a rolling contact between said stem and. cam 7-0), which cam is mounted upon shaft 27. Pivotally connected with cam 70 is pitman 71, the other end of which is connected to piston 72 45 which has a working fit in cylinder 73. The

interior of cylinder 73 is connected by pipe 74 with the interior of the air controllingvalve chamber 62. As shown in Figs. 9 and 10, on the inner side of the casing 61 of the air con- 75 and 76, into which channels pipes 7 4.and- 59 res spectively .open. The central portion of.

valve 63 is ,reduced in size as shown at 77 in Fig. 9 so thatwhen the valve is in the posi- 55 tion shown insaid figure ipes 59 and 7 4'are the valve chamosition shown in Fig. 10, the rear end thereof cuts off es and pipe in communication throng The purpose of this construction is to cause chamber 46 to have the air exhausted therefrom by the reciprocation of piston 72 in glinder'73,.the position of cam 70 on its aft being such that when piston 72 is at about the central portion of its downward stroke, cam 70 operates valve 63 toestablish communication between pipes 59 and 74. At the same time that this communication is established, the paper carrier 75 brings the sheets of pa er 7 6 so that one end thereof rests upont e casing of chamber 46 directly overports 47 so that the bottom sheet is held by suction upon said ports.

Movement of paper cylinder-At each end of cylinder 37 are cog gears 77 which mesh with racks ing frame 33, whereby as said frame is moved on its guideways, said cylinder is caused to revolve, first in one direction and then in the other direction, depending upon the direction that said frame is at that time traveling. Shaft 49 (see Fig. 3) is providedwith a pinion 79 which meshes with a rack machine so that when the cylinder is rotated it-causes the travel of block 50 in guideway 51 in the reverse direction to which the type carrying frame is traveling, whereby the paperon said cylinder is brought into contact with the type carried by said frame, the

same being elevated as before described as the frame travels to the left and depressed so as not .to contact therewith when the frame travels to the right, A like pinion and rack is-at the other end of the shaft.

Delivery of printed paper out of machine- Themovement of the cam 70 is so timed that just as the exhaust is cut off, the sheet of paper on the cylinder is engaged by. a friction roller 81 mounted on shaft 82, as best shown in Fig. 18; and is kept by said roller in engagement with said cylinder. As best shown in Fig. 5 a portion of cylinder 37 is cut out at 83 and in this cut out portion is secured the casing of'chamber 46. In the top of the casing of chamber 46 are grooves- 84, shown in alpron 86 which is provided with' fingers 87 t at pass into grooves 84 as the cylinder is rotated and lift the paper off the cylinder so that it will pass uponthe delivery apron as the cylinder is revolved to the right. Cams 88 are mounted on shaft 49. 7 These cams are circular exce t adjacent to the opening in cylinder 37 w ere they are cut away, as shown in Fig. 18. Curved arms .89 are secured to the delivery apron and project downwardly slightly therefrom. These arms ride u on cams 88 and are held spring presse against the same by spring 90 secured to t e shaft and to its bearings, and when they reach the cut away portion of the cam they drop down into the grooves and Fig. 18. Secured to shaft 85 is the delivery are raised up' out of: the grooves and above the. cylinder when the circular dportion of the cam is again reached. The elivery apron is provided with an upwardly extending arm 86 (see'Fig. 15) which engages a lug 86 on the sideof the frame when chamber 46 is be- 80, which last rack is rigidly secured to the frame of the 78 on the sides of the type carryof this bolt and at th e center of ing exhausted so as apron from dropping when the cut away portlon of cam 88 is reached. As the cylinder revolves this apron causes the printed sheets to pass into the collection box 91.

nk'ing deuice.An ink fountain 92 is secured to the type carrying frame and has a roller 93 therein which engages the inking rollers 94 as the frame isreciprocated and carries on the said inking rollers the necessary ink to ink the type as they pass under said inking rollers. Spreading rollers '95 are provided to take off the surplus ink.

aper carrying mechanism.-The aper carrier has an adjustable back 96 so t at it can be adjusted to paper of different widths and is supported by a plate 97 upon which it reciproeates. The front 9 of the paper carrier is hinged at 99 to an adjustable arm 100 which is secured to ledge 10], which ledge forms the lower part of the side of the (arrier. Aibolt 102 passes through the front plate and screws into the end of the ledge and is provided with a nut 103 which acts as a stop to hold the front plate in a vertical position as shown in Fig. 5. Between the head the front plate is a spring 104 which holds the plate yieldingly engaging said nut. It will be observed that the lower end of the front plate is engaged by the (asmg of chamber 46, which as it rotates will cause the lower portion of the plate to swing outwardly until it passes below the end of the plate when the same will spring back against the front end of the paper in the carrier, thereby packing the same.

Movement of paper carrier.-The movement of the paper carrier is not my invention. It is effected as follows: A red 105 is secured to the sides 106 of the paper carrier and on this red is mounted an adjustable pitman 107, the other end of which is secured by belt 108 to lever 109. .Bolt 108 passes through lever 109 in slot 110 to adjust the travel of the carrier. Lever 109 is pivoted at 11 1 to abearmg 112 secured to the frame of the machine the rear end thereof. To tins lever is secured an arm 113 which has a cam slot 114 therein, the front end of which .projects downwardly as shown in Fig. 1.

Within this slot is a roller 115 which is mounted upon belt 116, which bolt is the pivot which unites pitman 31 with arm 32. From this construction it will be seen that the paper carrier will be moved forward wheneverthe roller 115 enters the forward end of the cam slot and that when it moves in the reverse direction it will be moved backward until the roller reaches the horizontal or rear portion of the cam slot when the paper carrier will have no motion. This movement is so timed that just before the extreme limit of forward movement of the paper carrier has been reached the lower to hold the delivery lower sheet of paper has dropped below the other sheets a supporting rack consisting of a plurality of fingers 117 is brought beneath the front end of the sheets to support them as they move still further forward until they reach their extreme motion to the right as shown in Fig. 16 when the paper carrier quickly travels to the left These fingers are secured to bar 118 by means of set screws 119 so that they can be adjusted. Bar 118 is moved by the L- shaped lever 120, in the outer end of which is a roller 12], which roller engages and rides upon track 122 secured to the side of the paper carrier so that as the paper carrier moves forward or to the right said track will engage said roller and thereby move the fingers upwardly so that they will support the front ends of the sheets of paper during the latter part of their travel toward the right or forward and also on the first part of to the left or baekwardly. The front portion of this track .slopes downwardly s.) that the front end of the sheets of paper will be over the points of the fingers before they are raised in contact with the paper.

Mechanism for controlling the trap door.- As before stated pipe 59 is provided with a T- fitting 60 and to this fitting is connected a pipe 123 which is connected to the casing 124 of valve chamber 125 and opens into said cham-. her. In this casing is the tubular valve 126 in which is partially housed the spiral spring 127, one end of which bears against the easing of the valve chamber and the other end bears against the valve and normally holds said valve pushed partially out of said chamber. To the outer end of valve 126 is pivotally connected link bar 128 which is also pivotally connected to arm 129 on the shaft 130; Shaft 130 extends through the side bar 131, which bar forms a part of the frame of the machine and said shaft is revoluble in said bar. On the other end of said shaft is an arm 132 (shown in Fig. 5) which when said shaft is rocked by the movement of said valve to the left causes said trap door 43 to rise and form an integral part of track 44,-so that when said trap door is in its elevated position said roller 42 will travel backwards and forwards without causing the form box 36 to rise so that the type therein cannot engage roller 37. Whenever there is no paper in the paper carrier it will be seen that there is nothing to close ports 47 so that the action of piston 72 cannot exhaust the air sheet of the paper in thecarrier is brought 1 from pipe 59 and consequently cannot exand oil said rack.

their travel' haust the tion and said trap door will fall of its own is in the carrier it is sucked upon ports 47 so that chamber 46 and pipe open said feed box being adapted for the reception of the paper to be printed; a support for said feed box; a reciprocating rotary impression cylinder having in its periphery an air chamber provide with ports in the periphery thereof; mechanism for exhausting the air from said air chamber when the front end of a sheet of paper in said feed box registers with said air chamber; means for releasing said exhaust upon the revolution of said cylinder; guideways; a reciprocating type carrying frame traveling on said ideways; a form air from chamber 125, and that when chamber 125 is not exhausted the power of spring 27 is such that through connecting mechanism it keeps trap door 43 elevated andv the form box remains in its depressed position, but when a sheet of paper,

59 are exhausted, thereby also exhausting through pipe 123 chamber 125 when the powerof spring 127 is overcome and arm 132 is withdrawn from supporting trapdoor 43 in its elevated posi- V weight. However, to insure the positive acame and vertically movable thereon; type t1on of said trap door a spring 133 isprovided in said box; and mechanism operable by exto depress said trap door as shown in Fig. 5;- -haust to cause the movement of the form box ciprocating rotary impression cylinder; and

' said shafts; and mechanism operable by exrocating type carrying box having the front to carry the type into engagement with the paper on said cylinder.

1 4-. In a printing press, tary impression cylinder ery an air periphery a connection control valve chamber; conne'ction therefrom 'to said control valve chamber; a valve in said control valve chamber; a cam in enga ement with said valve; a connection from said cam to said-pump; an mechanism to operate said cam. In witness that I claim the Having described my claim is 4 1. In a printlng press, iideways; a recip rocating type carrying'frame traveling on said guideways; aform box carried by said frame and vertically movable thereon; .a reinvention What I a reciprocating ro-.

thereof; a control valve chamber; from said air chamber to said means operable by exhaust to cause the movementbf the form'box toward and from-- said cylinder.

2. In a printing press, ideways a recipame traveling on said guldeways; a form box carried by said frame and vertically movable thereon; shafts mounted in bearings secured to said type carrying frame and having-a portion thereo flattened, said form box being supported by foregoing "I day of December, 1906. v

' I HENRY E. BRETT Witnesses I i G. E. HARPHAM, EDMUND A. STRAUSE.

haust to rock said shafts. 1

3. In a printing press, a reciprocating feed end of the bottom having in its perlphchamber provided With'ports in the an exhaust pump; a

have hereunto subscribed my name this 29th 

